R. STAHL 8530/1-MCB-STA103N-B32-000-4 Line Protection Circuit Breaker
This document provides detailed technical information for the R. STAHL 8530/1-MCB-STA103N-B32-000-4 line protection circuit breaker, article number 293849.
Product Overview
The R. STAHL 8530 series line protection circuit breakers offer robust current limitation for short circuits and high breaking capacities of 10, 15, or 25 kA. They are designed for minimal line load and high selectivity with upstream fuses. These modular components are available in 1 to 4-pole versions with nominal currents from 0.5–63 A, supporting a maximum installation capacity of 4.5 installation units (UP).
Key features include:
- Conformity to EN 60947-2 for disconnection
- Energy limitation class 3
- Modular design for easy system expansion and replacement
- Simple clip-on mounting on a DIN rail in Ex e enclosures
- Fixed thermal-magnetic trip units
- Ergonomic lever for safe operation
- Padlock protection (accessories) to prevent re-operation during maintenance
Technical Specifications
Explosion Protection
| Characteristic | Value |
|---|---|
| Application Area (Zones) | 1, 2 |
| Application Area (Zones) Note | Usable in Zone 21 / 22 with protection via Ex tb / tc enclosure |
| IECEx Certificate Gas | IECEx FMG 19.0029U |
| IECEx Gas Explosion Protection | Ex db eb IIC Gb |
| ATEX Certificate Gas | FM19ATEX0191U |
| ATEX Gas Explosion Protection | II 2 G Ex db eb IIC Gb |
| Certificates | ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM) |
| Conformity Certificate | ATEX Conformity Certificate |
Electrical Characteristics
| Characteristic | Value |
|---|---|
| Rated Operational Voltage AC | 230/400 V |
| Rated Service Current | 32 A |
| Frequency | 50/60 Hz |
| Rated Breaking Capacity | 10 kA |
| Electrical Service Life | 104 |
| Mechanical Service Life | 2 x 104 |
| 1st Auxiliary Function | None |
| Voltage 1st Auxiliary Function AC | - |
| Max. Current 1st Auxiliary Function | - |
| 2nd Auxiliary Function | None |
| Max. Voltage 2nd Auxiliary Function DC | - |
| Tripping Characteristic | B |
| Number of Poles | 3 poles + N |
Ambient Conditions
| Characteristic | Value |
|---|---|
| Ambient Temperature | -40 °C ... 70 °C |
| Ambient Temperature | -40 °C ... 70 °C |
| Ambient Temperature | -40 °F ... 158 °F |
| Ambient Temperature | -40°F ... +158°F |
| Ambient Temperature Note | Ambient temperatures differing based on current certificates, on request |
Mechanical Characteristics
| Characteristic | Value |
|---|---|
| Degree of Protection (IP) (IEC 60529) | IP2X |
| Housing Material | Thermoplastic |
| Minimum Connection Terminal Size | 1.5 mm² |
| Maximum Connection Terminal Size | 25 mm² |
| Minimum Connection Terminal Size AWG | 16 AWG |
| Maximum Connection Terminal Size AWG | 4 AWG |
| Connection Terminal 2 Minimum Size | 1.5 mm² |
| Connection Terminal 2 Maximum Size | 10 mm² |
| Connection Terminal 2 AWG Minimum Size | 16 AWG |
| Connection Terminal 2 AWG Maximum Size | 8 AWG |
| Clamping Torque Minimum | 2 N·m |
| Clamping Torque Maximum | 3 N·m |
| Connection Terminal Note | Connection of 2 conductors (upper and lower chamber simultaneously): Upper and lower chamber max. 16 / 10 mm² (Connection can be made with a maximum cross-section difference between the upper and lower chamber.) |
| Allowed combination possibilities of connection terminals are indicated in the operating manual. | |
| Width | 110 mm |
| Width in Inches | 4.33 in |
| Length | 165 mm |
| Length in Inches | 6.5 in |
| Mounting Depth | 138.3 mm |
| Mounting Depth Inches | 5.44 in |
| Weight | 1.8 kg |
| Weight | 3.969 lb |
Mounting / Installation
| Characteristic | Value |
|---|---|
| Clamping Torque | 2–3 N·m |
| Clamping Torque in lbf·in | 17.7 ... 26.6 lbf·in |
| Clamping Torque Auxiliary Contact | 0.4–0.6 N·m |
| Clamping Torque Auxiliary Contact lbf·in | 3.5 ... 5.3 lbf·in |
Technical Drawings
Technical drawings are subject to change.
- 3-pole + N, without auxiliary contact
- Tripping Characteristic B: A graph illustrates the tripping characteristic curve from a cold state, showing the relationship between multiples of the rated current (I/In) and time in seconds and minutes for AC and DC.
- Overall Dimensions (all dimensions in mm [inches]): Diagrams show the overall dimensions of the unit, including width, length, and mounting depth, with variations for 8530/1, 4 division units.
Accessories
- Quadruple Locking Device: A locking/unlocking system that allows individual locking of the component using up to 4 cylinder locks. Part No. 227232.
- Fixing Kit: A kit for fixing the component to a mounting plate without a DIN rail. Part No. 276618.
- Cylinder Lock: For locking (stirrup Ø 3). Part No. 107115.
Subject to change in technical specifications, dimensions, weights, construction types, and delivery possibilities. Figures are for indicative purposes only.
R. STAHL Schaltgeräte GmbH | Am Bahnhof 30 | 74638 WALDENBURG
